This crystal clear leader is meant for auto stop and auto reverse tape decks that use clear, transparent tape to trigger the deck to stop or reverse. One example would be the Revox A77 open reel deck. You get 500 feet on a 5" reel. Normally you need perhaps 4" to stop a tape deck (this is all up to the deck design) so 500 feet is good for putting sensing on over 725 tapes if you leader both ends. Normally people use this in conjunction with white leader using only enough clear leader to trigger the deck. We have to say this, this leader will NOT make your deck stop or reverse if the deck isn't designed to use clear leader tape to optically trigger the deck. Made in Europe.
Please note if you need more of this item than is available here, go to Amazon.com and search B00VMPGHD6 where it can be ordered through Amazon for 2 day shipment to you and it's Prime©